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Histories of Two Hundred and Fifty-One Divisions of the German Army which Participated in the War (1914-1918), compiled from records of Intelligence section of the General Staff, American Expeditionary Forces, at General Headquarters, Chaumont, France 1919 (1920)

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1.
German Empire
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The German Empire was the historical German nation state that existed from the unification of Germany in 1871 to the abdication of Kaiser Wilhelm II in 1918, when Germany became a federal republic. The German Empire consisted of 26 constituent territories, with most being ruled by royal families and this included four kingdoms, six grand duchies, five duchies, seven principalities, three free Hanseatic cities, and one imperial territory. Although Prussia became one of kingdoms in the new realm, it contained most of its population and territory. Its influence also helped define modern German culture, after 1850, the states of Germany had rapidly become industrialized, with particular strengths in coal, iron, chemicals, and railways. In 1871, it had a population of 41 million people, and by 1913, a heavily rural collection of states in 1815, now united Germany became predominantly urban. During its 47 years of existence, the German Empire operated as an industrial, technological, Germany became a great power, boasting a rapidly growing rail network, the worlds strongest army, and a fast-growing industrial base. In less than a decade, its navy became second only to Britains Royal Navy, after the removal of Chancellor Otto von Bismarck by Wilhelm II, the Empire embarked on a bellicose new course that ultimately led to World War I. When the great crisis of 1914 arrived, the German Empire had two allies, Italy and the Austro-Hungarian Empire, Italy, however, left the once the First World War started in August 1914. In the First World War, German plans to capture Paris quickly in autumn 1914 failed, the Allied naval blockade caused severe shortages of food. Germany was repeatedly forced to send troops to bolster Austria and Turkey on other fronts, however, Germany had great success on the Eastern Front, it occupied large Eastern territories following the Treaty of Brest-Litovsk. German declaration of unrestricted submarine warfare in early 1917 was designed to strangle the British, it failed, but the declaration—along with the Zimmermann Telegram—did bring the United States into the war. Meanwhile, German civilians and soldiers had become war-weary and radicalised by the Russian Revolution and this failed, and by October the armies were in retreat, Austria-Hungary and the Ottoman Empire had collapsed, Bulgaria had surrendered and the German people had lost faith in their political system. The Empire collapsed in the November 1918 Revolution as the Emperor and all the ruling monarchs abdicated, and a republic took over. The German Confederation had been created by an act of the Congress of Vienna on 8 June 1815 as a result of the Napoleonic Wars, German nationalism rapidly shifted from its liberal and democratic character in 1848, called Pan-Germanism, to Prussian prime minister Otto von Bismarcks pragmatic Realpolitik. He envisioned a conservative, Prussian-dominated Germany, the war resulted in the Confederation being partially replaced by a North German Confederation in 1867, comprising the 22 states north of the Main. The new constitution and the title Emperor came into effect on 1 January 1871, during the Siege of Paris on 18 January 1871, William accepted to be proclaimed Emperor in the Hall of Mirrors at the Palace of Versailles. The second German Constitution was adopted by the Reichstag on 14 April 1871 and proclaimed by the Emperor on 16 April, the political system remained the same. The empire had a parliament called the Reichstag, which was elected by universal male suffrage, however, the original constituencies drawn in 1871 were never redrawn to reflect the growth of urban areas

2.
German Army (German Empire)
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The Imperial German Army was the name given to the combined land and air forces of the German Empire. The term Deutsches Heer is also used for the modern German Army, the German Army was formed after the unification of Germany under Prussian leadership in 1871 and dissolved in 1919, after the defeat of the German Empire in World War I. When operating together, the units were known as the Federal Army, Prussia formed the North German Confederation and the treaty provided for the maintenance of a Federal Army and a Federal Navy. Further laws on military duty also used these terms, through these conventions and the 1871 Constitution of the German Empire, an Army of the Realm was created. The contingents of the Bavarian, Saxon and Württemberg kingdoms remained semi-autonomous, the Constitution of the German Empire, dated April 16,1871, changed references in the North German Constitution from Federal Army to either Army of the Realm or German Army. After 1871, the armies of the four kingdoms remained relatively distinct. German Army was used in legal documents, such as the Military Penal Code. Württemberg and Saxon units were numbered according to the Prussian system, the commander of the Imperial German Army, less the Bavarian contingent, was the Kaiser. He was assisted by a Military Cabinet and exercised control through the Prussian Ministry of War, the Chief of the General Staff became the Kaisers main military advisor and the most powerful military figure in the Empire. Bavaria kept its own Ministry of War and General Staff, saxony also maintained its own Ministry of War and the Ministry of War of Württemberg also continued to exist. Command of the Prussian Army had been reformed in the wake of the defeats suffered by Prussia in the Napoleonic Wars, the General Staff system, that sought to institutionalize military excellence, was the main result. It provided planning and organizational work during peacetime and wartime, the Prussian General Staff, proven in battle in the Wars of Unification, became the German General Staff upon formation of the German Empire, given Prussias leading role in the German Army. During wartime, the staff of the Army inspectorates formed field army commands, during World War I, a higher command level, the army group, was created. Each army group controlled several field armies, Germany was divided into army inspectorates, each of which oversaw three or four corps. There were five in 1871, with three more added between 1907 and 1913, the corps consisted of two or more divisions and various support troops, covering a geographical area. The corps was responsible for maintaining the reserves and Landwehr in the corps area. By 1914, there were 21 corps areas under Prussian jurisdiction, besides the regional corps, there was also a Guard Corps, which controlled the elite Prussian Guard units. A corps usually included an infantry battalion, a heavy artillery battalion, an engineer battalion, a telegraph battalion

3.
World War I
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World War I, also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history and it was one of the deadliest conflicts in history, and paved the way for major political changes, including revolutions in many of the nations involved. The war drew in all the worlds great powers, assembled in two opposing alliances, the Allies versus the Central Powers of Germany and Austria-Hungary. These alliances were reorganised and expanded as more nations entered the war, Italy, Japan, the trigger for the war was the assassination of Archduke Franz Ferdinand of Austria, heir to the throne of Austria-Hungary, by Yugoslav nationalist Gavrilo Princip in Sarajevo on 28 June 1914. This set off a crisis when Austria-Hungary delivered an ultimatum to the Kingdom of Serbia. Within weeks, the powers were at war and the conflict soon spread around the world. On 25 July Russia began mobilisation and on 28 July, the Austro-Hungarians declared war on Serbia, Germany presented an ultimatum to Russia to demobilise, and when this was refused, declared war on Russia on 1 August. Germany then invaded neutral Belgium and Luxembourg before moving towards France, after the German march on Paris was halted, what became known as the Western Front settled into a battle of attrition, with a trench line that changed little until 1917. On the Eastern Front, the Russian army was successful against the Austro-Hungarians, in November 1914, the Ottoman Empire joined the Central Powers, opening fronts in the Caucasus, Mesopotamia and the Sinai. In 1915, Italy joined the Allies and Bulgaria joined the Central Powers, Romania joined the Allies in 1916, after a stunning German offensive along the Western Front in the spring of 1918, the Allies rallied and drove back the Germans in a series of successful offensives. By the end of the war or soon after, the German Empire, Russian Empire, Austro-Hungarian Empire, national borders were redrawn, with several independent nations restored or created, and Germanys colonies were parceled out among the victors. During the Paris Peace Conference of 1919, the Big Four imposed their terms in a series of treaties, the League of Nations was formed with the aim of preventing any repetition of such a conflict. This effort failed, and economic depression, renewed nationalism, weakened successor states, and feelings of humiliation eventually contributed to World War II. From the time of its start until the approach of World War II, at the time, it was also sometimes called the war to end war or the war to end all wars due to its then-unparalleled scale and devastation. In Canada, Macleans magazine in October 1914 wrote, Some wars name themselves, during the interwar period, the war was most often called the World War and the Great War in English-speaking countries. Will become the first world war in the sense of the word. These began in 1815, with the Holy Alliance between Prussia, Russia, and Austria, when Germany was united in 1871, Prussia became part of the new German nation. Soon after, in October 1873, German Chancellor Otto von Bismarck negotiated the League of the Three Emperors between the monarchs of Austria-Hungary, Russia and Germany

4.
Division (military)
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A division is a large military unit or formation, usually consisting of between 10,000 and 20,000 soldiers. Infantry divisions during the World Wars ranged between 10,000 and 30,000 in nominal strength, in most armies, a division is composed of several regiments or brigades, in turn, several divisions typically make up a corps. In the West, the first general to think of organising an army into smaller units was Maurice de Saxe, Marshal General of France. He died at the age of 54, without having implemented his idea, victor-François de Broglie put the ideas into practice. He conducted successful practical experiments of the system in the Seven Years War. The first war in which the system was used systematically was the French Revolutionary War. It made the more flexible and easy to manoeuvre. Under Napoleon, the divisions were grouped together into corps, because of their increasing size, napoleons military success spread the divisional and corps system all over Europe, by the end of the Napoleonic Wars, all armies in Europe had adopted it. In modern times, most military forces have standardized their divisional structures, the peak use of the division as the primary combat unit occurred during World War II, when the belligerents deployed over a thousand divisions. With technological advances since then, the power of each division has increased. Divisions are often formed to organize units of a particular type together with support units to allow independent operations. In more recent times, divisions have mainly been organized as combined arms units with subordinate units representing various combat arms, in this case, the division often retains the name of a more specialized division, and may still be tasked with a primary role suited to that specialization. For the most part, large cavalry units did not remain after World War II, in general, two new types of cavalry were developed, air cavalry or airmobile, relying on helicopter mobility, and armored cavalry, based on an autonomous armored formation. The former was pioneered by the 11th Air Assault Division, formed on 1 February 1963 at Fort Benning, on 29 June 1965 the division was renamed as the 1st Cavalry Division, before its departure for the Vietnam War. After the end of the Vietnam War, the 1st Cavalry Division was reorganised and re-equipped with tanks, the development of the tank during World War I prompted some nations to experiment with forming them into division-size units. Many did this the way as they did cavalry divisions, by merely replacing cavalry with AFVs. This proved unwieldy in combat, as the units had many tanks, instead, a more balanced approach was taken by adjusting the number of tank, infantry, artillery, and support units. A panzer division was a division of the Wehrmacht and the Waffen-SS of Germany during World War II

5.
Guards Cavalry Division (German Empire)
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The Guards Cavalry Division was a unit of the German army that was stationed in Berlin. The division was a part of the Guards Corps and it served on the Western Front until December 1914, then undertook frontier guard duties against Holland until 30 June 1915, when it relocated to Russia. From 16 March 1918 to 9 April 1918, it was dismounted, re-formed and trained on the Zossen troop training ground, thereafter, it served as the Guard Cavalry Schützen Division on the Western Front. It was in Artois until May 1918, then Champagne / Aisne, by the end of the war, it was serving under VI Reserve Corps, 1st Army, Heeresgruppe Deutscher Kronprinz on the Western Front. A more detailed combat chronicle can be found at the German-language version of this article, here, the cavalry brigades were renamed Cavalry Schützen Commands and performed a similar role to that of an infantry regiment command. Likewise, the regiments became Cavalry Schützen Regiments and allocated the role of an infantry battalion. However, these units were much weaker than normal infantry formations, imperial German Army 1914-18, Organisation, Structure, Orders-of-Battle. The London Stamp Exchange Ltd.1920, the German Forces in the Field, 7th Revision, 11th November 1918, Compiled by the General Staff, War Office. Imperial War Museum, London and The Battery Press, Inc.1918

6.
1st Guards Infantry Division (German Empire)
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The 1st Guards Infantry Division was a unit of the Prussian Imperial German Army and was stationed in Berlin. The division was created on September 5,1818, in the reorganization the guards brigades, that previously had been assigned to various corps, and batteries of the Prussian Guards were grouped into a single formation. By 1914 the division was subordinate to the Guards Corps of the Imperial German Army, at the outbreak of the First World War it was commanded by Gen-Lt

7.
15th Division (German Empire)
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The 15th Division was a unit of the Prussian/German Army. It was formed as the 16th Division on September 5,1818 and it became the 15th Division on December 14,1818. The division was subordinated in peacetime to the VIII Army Corps, the division was disbanded in 1919 during the demobilization of the German Army after World War I. It was recruited in the densely populated Prussian Rhine Province, mainly in the Lower Rhine region, the 15th Division fought in the Austro-Prussian War in 1866, seeing action in the Battle of Königgrätz. In the Franco-Prussian War of 1870-71, the fought in the Battle of Gravelotte and the Siege of Metz, and then in the battles of Amiens, Hallue, Bapaume. During World War I, the division marched through Luxembourg, Belgium and France, in became known to the Allies as the Great Retreat. In 1916, it fought in the Battle of the Somme and it was briefly sent to the Eastern Front in late 1916. It participated in the 1918 German Spring Offensive, and defended against the Allied counteroffensives, Allied intelligence rated it as a good but second class division. During wartime, the 15th Division, like other regular German divisions, was redesignated an infantry division, the organization of the 15th Infantry Division in 1870 at the beginning of the Franco-Prussian War was as follows,29. Infanterie-Brigade Füsilier-Regiment Nr.33 Infanterie-Regiment Nr.6530, the 15th Divisions 30th Infantry Brigade went to the 16th Division in exchange for the 80th Infantry Brigade, formed in 1897. The organization of the 15th Division in 1914, shortly before the outbreak of World War I, was as follows,29, infanterie Brigade Infanterie-Regiment von Lützow Nr.2510. Kavallerie-Brigade Kürassier-Regiment Graf Geßler Nr.8 Husaren-Regiment König Wilhelm I, feldartillerie-Brigade Bergisches Feldartillerie-Regiment Nr.593. Divisions received engineer companies and other units from their higher headquarters. The 15th Division was again renamed the 15th Infantry Division and its initial wartime organization was as follows,29. Infanterie-Brigade, Infanterie-Regiment von Lützow Nr.2510, rheinisches Infanterie-Regiment Nr.16180. Infanterie-Brigade,5. Rheinisches Infanterie-Regiment Nr.160 Kürassier-Regiment Graf Geßler Nr.815, feldartillerie-Brigade, Bergisches Feldartillerie-Regiment Nr.593. Rheinisches Pionier-Bataillon Nr.8 Divisions underwent many changes during the war, with moving from division to division. During the war, most divisions became triangular - one infantry brigade with three infantry regiments rather than two brigades of two regiments